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Finding the Fourth Proportional to 18,157.22, 27,210.30 and 14,442.98

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Solution

The fourth proportional to 18,157.22, 27,210.30 and 14,442.98 is: 21,644.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,157.22 : 27,210.30 = 14,442.98 : x
  2. Step 2: Convert to fraction form
    18,157.22/27,210.30 = 14,442.98/x
  3. Step 3: Cross multiply
    18,157.22x = 27,210.30 × 14,442.98
  4. Step 4: Simplify right side
    18,157.22x = 392,997,818.69
  5. Step 5: Solve for x
    x = 392,997,818.69/18,157.22
  6. Step 6: Final answer
    x = 21,644.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.